SAP MACKW ABAP Select data from SAP table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MACKW table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to MACKW. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the MACKW table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_MACKW TYPE STANDARD TABLE OF MACKW,
      WA_MACKW TYPE MACKW,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <MACKW> TYPE MACKW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MACKW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MACKW
  INTO TABLE IT_MACKW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MACKW
*  INTO TABLE @DATA(IT_MACKW2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_MACKW INDEX 1 INTO DATA(WA_MACKW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MACKW ASSIGNING <MACKW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MACKW>-MANDT = 1.
<MACKW>-MATNR = 1.
<MACKW>-WERKS = 1.
<MACKW>-MEINS = 1.
<MACKW>-DISST = 1.

ENDLOOP.

LOOP AT IT_MACKW INTO WA_MACKW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MACKW-LABOR, sy-vline,
  WA_MACKW-AEKLK, sy-vline,
  WA_MACKW-PSTAT, sy-vline,
  WA_MACKW-SOBSL, sy-vline,
  WA_MACKW-BSTFE, sy-vline,
  WA_MACKW-EKGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MACKW you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_MACKW TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_MACKW INTO WA_MACKW.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MACKW-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MACKW-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MACKW-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MACKW-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STLAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MACKW-STLAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MACKW-STLAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MACKW-PLNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MACKW-PLNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field APLAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MACKW-APLAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MACKW-APLAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field STDPD
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MACKW-STDPD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MACKW-STDPD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MACKW-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MACKW-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field /CWM/VALUM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MACKW-/CWM/VALUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MACKW-/CWM/VALUM.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_MACKW_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
MEINS TYPE STRING,
DISST TYPE STRING,
LABOR TYPE STRING,
AEKLK TYPE STRING,
PSTAT TYPE STRING,
SOBSL TYPE STRING,
BSTFE TYPE STRING,
EKGRP TYPE STRING,
DISPO TYPE STRING,
FEVOR TYPE STRING,
STLAL TYPE STRING,
STLAN TYPE STRING,
PLNNR TYPE STRING,
APLAL TYPE STRING,
LOSGR TYPE STRING,
SOBSK TYPE STRING,
VERKZ TYPE STRING,
AUSSS TYPE STRING,
SAUFT TYPE STRING,
KZKFG TYPE STRING,
STDPD TYPE STRING,
CUOBJ TYPE STRING,
MTART TYPE STRING,
LVORA TYPE STRING,
LVORC TYPE STRING,
ALTSL TYPE STRING,
SFEPR TYPE STRING,
MSTAE TYPE STRING,
MSTDE TYPE STRING,
MMSTA TYPE STRING,
MMSTD TYPE STRING,
KZKUP TYPE STRING,
PLNTY TYPE STRING,
SBDKZ TYPE STRING,
BESKZ TYPE STRING,
PRCTR TYPE STRING,
FVIDK TYPE STRING,
FXPRU TYPE STRING,
SPART TYPE STRING,
KZEFF TYPE STRING,
AHDIS TYPE STRING,
NCOST TYPE STRING,
USEQU TYPE STRING,
/CWM/XCWMAT TYPE STRING,
/CWM/VALUM TYPE STRING,
SCHGT TYPE STRING,
KAUSF TYPE STRING,
SGT_CSGR TYPE STRING,
SGT_COVSA TYPE STRING,
SGT_STAT TYPE STRING,
SGT_REL TYPE STRING,
SGT_COVS TYPE STRING,
SGT_STATC TYPE STRING,
SGT_SCOPE TYPE STRING,
SGT_DEFSC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MACKW_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_MACKW_STR-MANDT sy-vline 
WA_MACKW_STR-MATNR sy-vline 
WA_MACKW_STR-WERKS sy-vline 
WA_MACKW_STR-MEINS sy-vline 
WA_MACKW_STR-DISST sy-vline 
WA_MACKW_STR-LABOR sy-vline 
WA_MACKW_STR-AEKLK sy-vline 
WA_MACKW_STR-PSTAT sy-vline 
WA_MACKW_STR-SOBSL sy-vline 
WA_MACKW_STR-BSTFE sy-vline 
WA_MACKW_STR-EKGRP sy-vline 
WA_MACKW_STR-DISPO sy-vline 
WA_MACKW_STR-FEVOR sy-vline 
WA_MACKW_STR-STLAL sy-vline 
WA_MACKW_STR-STLAN sy-vline 
WA_MACKW_STR-PLNNR sy-vline 
WA_MACKW_STR-APLAL sy-vline 
WA_MACKW_STR-LOSGR sy-vline 
WA_MACKW_STR-SOBSK sy-vline 
WA_MACKW_STR-VERKZ sy-vline 
WA_MACKW_STR-AUSSS sy-vline 
WA_MACKW_STR-SAUFT sy-vline 
WA_MACKW_STR-KZKFG sy-vline 
WA_MACKW_STR-STDPD sy-vline 
WA_MACKW_STR-CUOBJ sy-vline 
WA_MACKW_STR-MTART sy-vline 
WA_MACKW_STR-LVORA sy-vline 
WA_MACKW_STR-LVORC sy-vline 
WA_MACKW_STR-ALTSL sy-vline 
WA_MACKW_STR-SFEPR sy-vline 
WA_MACKW_STR-MSTAE sy-vline 
WA_MACKW_STR-MSTDE sy-vline 
WA_MACKW_STR-MMSTA sy-vline 
WA_MACKW_STR-MMSTD sy-vline 
WA_MACKW_STR-KZKUP sy-vline 
WA_MACKW_STR-PLNTY sy-vline 
WA_MACKW_STR-SBDKZ sy-vline 
WA_MACKW_STR-BESKZ sy-vline 
WA_MACKW_STR-PRCTR sy-vline 
WA_MACKW_STR-FVIDK sy-vline 
WA_MACKW_STR-FXPRU sy-vline 
WA_MACKW_STR-SPART sy-vline 
WA_MACKW_STR-KZEFF sy-vline 
WA_MACKW_STR-AHDIS sy-vline 
WA_MACKW_STR-NCOST sy-vline 
WA_MACKW_STR-USEQU sy-vline 
WA_MACKW_STR-/CWM/XCWMAT sy-vline 
WA_MACKW_STR-/CWM/VALUM sy-vline 
WA_MACKW_STR-SCHGT sy-vline 
WA_MACKW_STR-KAUSF sy-vline 
WA_MACKW_STR-SGT_CSGR sy-vline 
WA_MACKW_STR-SGT_COVSA sy-vline 
WA_MACKW_STR-SGT_STAT sy-vline 
WA_MACKW_STR-SGT_REL sy-vline 
WA_MACKW_STR-SGT_COVS sy-vline 
WA_MACKW_STR-SGT_STATC sy-vline 
WA_MACKW_STR-SGT_SCOPE sy-vline 
WA_MACKW_STR-SGT_DEFSC sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.

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